<template>
    <div class="report">
         <!-- 面包屑导航区 -->
      <el-breadcrumb separator="|">
        <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
        <el-breadcrumb-item>数据统计</el-breadcrumb-item>
        <el-breadcrumb-item>数据报表</el-breadcrumb-item>
      </el-breadcrumb>
      <!-- 卡片视图区 -->
      <el-card>
         <!-- 为 ECharts 准备一个定义了宽高的 DOM -->
    <div id="main" style="width: 800px;height:400px;"></div>
      </el-card>
    </div>
</template>
<script>
// 导入echarts
import * as echarts from 'echarts';
import _ from "lodash"
export default {
    name :"report",
    data(){
        return{
            // 需要合并的数据
            options: {
        title: {
          text: '用户来源'
        },
        tooltip: {
          trigger: 'axis',
          axisPointer: {
            type: 'cross',
            label: {
              backgroundColor: '#E9EEF3'
            }
          }
        },
        grid: {
          left: '3%',
          right: '4%',
          bottom: '3%',
          containLabel: true
        },
        xAxis: [
          {
            boundaryGap: false
          }
        ],
        yAxis: [
          {
            type: 'value'
          }
        ]
      }
        }
    },
    created(){

    },
    // 此时页面上的元素已经渲染完毕了
  async  mounted(){
 // 基于准备好的dom，初始化echarts实例
      var myChart = echarts.init(document.getElementById('main'));
    const {data:res} = await this.$http.get("reports/type/1")
    if(res.meta.status!==200){
        return this.$message.error("获取折线图数据失败")
    }
       // 指定图表的配置项和数据
    const result = _.merge(res.data,this.options)
    console.log(result);

      // 使用刚指定的配置项和数据显示图表。
      myChart.setOption(result);
    },
    methods:{

    }
}
</script>
<style lang="less" scoped>

</style>